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Finding the Fourth Proportional to 67,228.48, 92,774.40 and 37,420.48

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Solution

The fourth proportional to 67,228.48, 92,774.40 and 37,420.48 is: 51,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,228.48 : 92,774.40 = 37,420.48 : x
  2. Step 2: Convert to fraction form
    67,228.48/92,774.40 = 37,420.48/x
  3. Step 3: Cross multiply
    67,228.48x = 92,774.40 × 37,420.48
  4. Step 4: Simplify right side
    67,228.48x = 3,471,662,579.71
  5. Step 5: Solve for x
    x = 3,471,662,579.71/67,228.48
  6. Step 6: Final answer
    x = 51,639.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.